Coronary Collaterals and Post-reperfusion Intramyocardial Hemorrhage

Impact of Coronary Collaterals on Intramyocardial Hemorrhage in AMI Patients

Status

Completed

Phases

Unknown

Study type

Observational

Source

ClinicalTrials.gov

Registry ID

NCT05898425

Acronym

MIRON-CL

Enrollment

262

Registered

2023-06-12

Start date

2022-08-08

Completion date

2024-09-17

Last updated

2025-04-06

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Acute Myocardial Infarction

Keywords

Coronary Angiography, Intramyocardial Hemorrhage, Cardiac Magnetic Resonance

Brief summary

This study examines the relationship between angiographic coronary collaterals (Rentrop grades) and post-reperfusion microvascular injury. This study aims to assess the impact of coronary collateral circulation on intramyocardial hemorrhage incidence and extent.

Interventions

None listed

Study design

Observational model

COHORT

Time perspective

RETROSPECTIVE

Eligibility

Sex/Gender

ALL

Age

18 Years to No maximum

Healthy volunteers

Inclusion criteria

1. Age 18-85 years 2. Index STEMI 3. Coronary angiogram with Primary coronary intervention 4. No contraindications for Cardiac MRI

Design outcomes

Primary

Measure	Time frame	Description
Incidence of Intramyocardial hemorrhage (IMH)	Day 3	Collaterals grades (0-III) will be correlated with incidence rate of IMH
Volume of Intramyocardial hemorrhage (IMH)	Day 3	Collaterals grades (0-III) will be correlated with IMH volume

Countries

United States

Outcome results